Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 3552 more...
- ItemBB018138 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018139 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018140 - Northern Pacific Engineering Drawing: Shop Plan - Track Floor Section, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018141 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018142 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018143 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018144 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018145 - Northern Pacific Engineering Drawing: Shop Plan - Trough Floor, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- ItemBB018146 - Northern Pacific Engineering Drawing: Shop Plan - Expansion Joints, Bridge 1 - 3rd Avenue, Spokane, Washington, undated
- 4167 more...